module.exports = {
	checkLogin: function checkLogin(req, res, next){
		if (!req.session.user) {
			req.flash('error', '未登录');
			return res.redirect('/signin');
		}
		next();
	},

	checkNotLogin: function checkNotLogin(req, res, next){
		if (req.session.user) {
			req.flash('error', '已登录');
			return res.redirect('back'); //返回之前的页面
		}
		next();
	}

};